KARACHI - Dollar gained more strength against rupee in money market on Tuesday as it was traded at the highest rate of Rs103 in inter-bank.  According to the data provided by the Forex Association of Pakistan, dollar traded at the lowest rate of Rs102.90 and highest rate of Rs 103 in inter-bank while it was traded at the minimum price of Rs 102.60 and maximum price of Rs 102.80 in cash free market.